Natrol 5-HTP Description: Promotes Positive Mood Helps Control Appetite Naturally Drug Free Natrol 5-HTP is a drug-free plant extract and amino acid that helps increase your body's own serotonin levels which play a key role in controlling appetite and enhancing mood. The end result: the positive attitude needed to help you maintain a positive, healthy outlook and keep your diet goals. Free Of Yeast, wheat, corn, milk, egg, soy, glutens, artificial colors/flavors, added sugar, starch and preservatives. Disclaimer These statements have not been evaluated by the FDA. These products are not intended to diagnose, treat, cure, or prevent any disease.